mirror of https://github.com/rust-lang/rust
39 lines
917 B
Rust
39 lines
917 B
Rust
//@ compile-flags: -O -C no-prepopulate-passes
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// Tests that the compiler can apply `noalias` and other &mut attributes to `drop_in_place`.
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// Note that non-Unpin types should not get `noalias`, matching &mut behavior.
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#![crate_type="lib"]
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use std::marker::PhantomPinned;
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// CHECK: define internal void @{{.*}}core{{.*}}ptr{{.*}}drop_in_place{{.*}}StructUnpin{{.*}}(ptr noalias noundef align 4 dereferenceable(12) %{{.+}})
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// CHECK: define internal void @{{.*}}core{{.*}}ptr{{.*}}drop_in_place{{.*}}StructNotUnpin{{.*}}(ptr noundef nonnull align 4 %{{.+}})
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pub struct StructUnpin {
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a: i32,
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b: i32,
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c: i32,
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}
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impl Drop for StructUnpin {
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fn drop(&mut self) {}
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}
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pub struct StructNotUnpin {
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a: i32,
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b: i32,
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c: i32,
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p: PhantomPinned,
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}
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impl Drop for StructNotUnpin {
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fn drop(&mut self) {}
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}
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pub unsafe fn main(x: StructUnpin, y: StructNotUnpin) {
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drop(x);
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drop(y);
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}
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